Barnet will have employed two mad dog managers then, as Martin Allen was there a while ago too. I would have thought that McGhee is the complete antithesis of Allen managerially speaking, and not a 'mad dog' at all.
Gus may of known the new stadium was just around the corner, but he still had to get the poor team that he inherited promotion. It only took him a season and a half to do it, which was some doing.